In the age of “the drop off,” parents often unfortunately look at any adults willing to spend time with their offspring as potential stand-in care-givers. This is robbing children of one of the greatest learning opportunities - the non-authority adult.
Children should be given the opportunity to spend peer time with as many adults as possible. Adults in this “peer mode,” instead of bearing the enormous burden of worrying about safety and nutrition and other liabilities, can be humorous, at ease, and honest. With parents in ear shot the other adults can be role models and endless sources of insight, not just the “person in charge du jour.” These relationships may evolve into apprentice and/or mentor models, but let it spend a long time just as friend.